1. Screen Recorder : We all know that, Google launched Android 12, with an inbuilt Screen Recorder but Samsung didn't give us it for Galaxy M21 & even M31 also. All other manufacturers have default Screen Recorder. so, My first suggestion is give us an Inbuilt Screen Recorder. It's a very basic feature.
2. Full Pro mode in Camera : Galaxy M21 has Samsung Gm2 sensor, which supports full pro mode features (i.e. Shutter speed control etc.) in Camera. M21 is a above 15k price tag phone. All other Manufacturers in this range, gives full pro mode support. So, We want full pro mode support in M21. We are also the brand promoters. So, if Sansung gives this feature, then we also promotes Samsung as good as possible.
3. Battery Improvement: A 6000 mah battery with S-Amoled ( Dark Mode activated all time) gives us only 14hrs of screen on time with light usage, where a 4035 mah phone gives My mother almost 16hrs of screen on time with an IPS Display. Specially, Android system eats heavy battery. So, Samsung should optimize it.
4. Performance Improvement : after One ui 3.1 update, My phone Freezes and lags many times. so, Samsung should fix it.
I have to say that, We doesn't want any flagship feature...but This is our basic need...if Samsung give this to us, then it will be amazing for Samsung Fans & will also make M21 a monster.
